<template>
	<view class="diy-bargain" v-if="list.length" :class="[value.template, value.style]" :style="warpCss">
		<!-- 商品头部 -->
		<view
			v-if="value.titleStyle.isShow"
			:class="[value.titleStyle.style, 'bargain-head']"
			:style="{
				backgroundImage:
					'url(' + $util.img(value.titleStyle.backgroundImage) + '), linear-gradient(to right,' + value.titleStyle.bgColorStart + ',' + value.titleStyle.bgColorEnd + ')'
			}"
		>
			<view
				v-if="value.titleStyle.leftStyle == 'text'"
				class="left-text"
				:style="{ fontSize: value.titleStyle.fontSize * 2 + 'rpx', color: value.titleStyle.textColor, fontWeight: value.titleStyle.fontWeight ? 'bold' : '' }"
			>
				{{ value.titleStyle.leftText }}
			</view>
			<image v-else class="left-img" :src="$util.img(value.titleStyle.leftImg)" mode="heightFix"></image>
			<view class="head-content" v-if="value.titleStyle.style == 'style-1'" :style="{ color: value.titleStyle.textColor }">低至0元免费拿</view>
			<view
				class="head-right"
				:style="{ fontSize: value.titleStyle.moreFontSize * 2 + 'rpx', color: value.titleStyle.moreColor }"
				@click="$util.redirectTo('/pages_promotion/bargain/list')"
			>
				<text>{{ value.titleStyle.more }}</text>
				<text class="iconfont icon-right"></text>
			</view>
		</view>
		<!-- 商品列表 -->
		<template v-if="value.template == 'row1-of1'">
			<view class="item" v-for="(item, index) in list" :key="index" @click="toDetail(item)" :class="[value.ornament.type]" :style="goodsItemCss">
				<view class="img-wrap" :style="{ borderRadius: value.imgAroundRadius * 2 + 'rpx' }">
					<image
						:style="{ borderRadius: value.imgAroundRadius * 2 + 'rpx' }"
						:src="$util.img(item.goods_image, { size: 'mid' })"
						mode="widthFix"
						@error="imageError(index)"
					></image>
				</view>
				<view class="content" v-if="value.goodsNameStyle.control || value.priceStyle.mainControl || value.btnStyle.control">
					<view
						v-if="value.goodsNameStyle.control"
						class="goods-name"
						:style="{ color: value.theme == 'diy' ? value.goodsNameStyle.color : '', fontWeight: value.goodsNameStyle.fontWeight ? 'bold' : '' }"
						:class="[{ 'using-hidden': value.nameLineMode == 'single' }, { 'multi-hidden': value.nameLineMode == 'multiple' }]"
					>
						{{ item.goods_name }}
					</view>
					<view class="progress" v-if="value.style == 'style-2'">
						<view class="bg">
							<view class="curr" :style="{ width: progress(item) * 2 + 'rpx' }">
								<image class="progress-bar" mode="widthFix" :src="$util.img('public/uniapp/bargain/progress_bar_01.png')"></image>
							</view>
						</view>
						<view class="num" v-if="item.is_bargaining">
							已砍
							<text>￥{{ (item.price - item.curr_price).toFixed(2) }}</text>
							，仅差
							<text>￥{{ item.curr_price }}</text>
						</view>
						<view class="num" v-else>
							最低可砍至
							<text>￥{{ item.floor_price }}</text>
						</view>
					</view>
					<view class="progress" v-if="value.style == 'style-3'">
						最低可砍至
						<text class="num">￥{{ item.floor_price }}</text>
					</view>
					<view class="price-wrap">
						<view class="discount-price" v-if="value.priceStyle.mainControl">
							<text class="unit price-style small" :style="{ color: value.theme == 'diy' ? value.priceStyle.mainColor + '!important' : '' }">¥</text>
							<text class="price price-style large" :style="{ color: value.theme == 'diy' ? value.priceStyle.mainColor + '!important' : '' }">{{ item.price.split('.')[0] }}</text>
							<text class="unit price-style small" :style="{ color: value.theme == 'diy' ? value.priceStyle.mainColor + '!important' : '' }">.{{ item.price.split('.')[1] }}</text>
						</view>
						<button
							v-if="value.btnStyle.control"
							:style="{
								background: value.btnStyle.theme == 'diy' ? 'linear-gradient(to right,' + value.btnStyle.bgColorStart + ',' + value.btnStyle.bgColorEnd + ')' : '',
								color: value.btnStyle.theme == 'diy' ? value.btnStyle.textColor : '',
								borderRadius: value.btnStyle.aroundRadius * 2 + 'rpx'
							}"
						>
							{{ item.is_bargaining ? '继续砍价' : value.btnStyle.text }}
						</button>
					</view>
				</view>
			</view>
		</template>

		<template v-if="value.template == 'horizontal-slide'">
			<scroll-view v-if="value.slideMode == 'scroll'" class="scroll" :scroll-x="true" :show-scrollbar="false">
				<view class="item" v-for="(item, index) in list" :key="index" @click="toDetail(item)" :class="[value.ornament.type]" :style="goodsItemCss">
					<view class="img-wrap" :style="{ borderRadius: value.imgAroundRadius * 2 + 'rpx' }">
						<image
							:style="{ borderRadius: value.imgAroundRadius * 2 + 'rpx' }"
							:src="$util.img(item.goods_image, { size: 'mid' })"
							mode="widthFix"
							@error="imageError(index)"
							:lazy-load="true"
						></image>
						<image
							class="bg"
							v-if="value.saleStyle.control && value.template == 'horizontal-slide' && value.style != 'style-2'"
							:src="$util.img('public/uniapp/bargain/bg.png')"
							mode="widthFix"
						></image>
						<view
							class="num"
							v-if="value.saleStyle.control && value.template == 'horizontal-slide' && value.style != 'style-2'"
							:style="{ color: value.theme == 'diy' ? value.saleStyle.color : '' }"
						>
							已砍{{ item.sale_num }}件
						</view>
					</view>
					<view
						:class="['content', { 'multi-content': value.nameLineMode == 'multiple' }]"
						v-if="value.goodsNameStyle.control || value.priceStyle.mainControl || value.priceStyle.lineControl"
					>
						<view
							v-if="value.goodsNameStyle.control"
							class="goods-name"
							:style="{ color: value.theme == 'diy' ? value.goodsNameStyle.color : '', fontWeight: value.goodsNameStyle.fontWeight ? 'bold' : '' }"
							:class="[{ 'using-hidden': value.nameLineMode == 'single' }, { 'multi-hidden': value.nameLineMode == 'multiple' }]"
						>
							{{ item.goods_name }}
						</view>
						<view class="discount-price" v-if="value.priceStyle.mainControl && value.template == 'horizontal-slide' && value.style != 'style-2'">
							<text class="unit price-style small" :style="{ color: value.theme == 'diy' ? value.priceStyle.mainColor + '!important' : '' }">¥</text>
							<text class="price price-style large" :style="{ color: value.theme == 'diy' ? value.priceStyle.mainColor + '!important' : '' }">
								{{ item.floor_price.split('.')[0] }}
							</text>
							<text class="unit price-style small" :style="{ color: value.theme == 'diy' ? value.priceStyle.mainColor + '!important' : '' }">
								{{ '.' + item.floor_price.split('.')[1] }}
							</text>
						</view>
						<view class="original-price price-font" v-if="value.priceStyle.lineControl" :style="{ color: value.theme == 'diy' ? value.priceStyle.lineColor : '' }">
							¥{{ item.price }}
						</view>
					</view>
				</view>
			</scroll-view>

			<swiper v-if="value.slideMode == 'slide'" :autoplay="false" class="swiper" :style="{ height: swiperHeight }">
				<swiper-item v-for="(pageItem, pageIndex) in page" :key="pageIndex" :class="['swiper-item', [list[pageIndex].length / 3] >= 1 && 'flex-between']">
					<view class="item" v-for="(item, dataIndex) in list[pageIndex]" :key="dataIndex" @click="toDetail(item)" :class="[value.ornament.type]" :style="goodsItemCss">
						<view class="img-wrap" :style="{ borderRadius: value.imgAroundRadius * 2 + 'rpx' }">
							<image
								:style="{ borderRadius: value.imgAroundRadius * 2 + 'rpx' }"
								:src="$util.img(item.goods_image, { size: 'mid' })"
								mode="widthFix"
								@error="imageError(dataIndex)"
								:lazy-load="true"
							></image>
							<image
								class="bg"
								v-if="value.saleStyle.control && value.template == 'horizontal-slide' && value.style != 'style-2'"
								:src="$util.img('public/uniapp/bargain/bg.png')"
								mode="widthFix"
							></image>
							<view
								class="num"
								v-if="value.saleStyle.control && value.template == 'horizontal-slide' && value.style != 'style-2'"
								:style="{ color: value.theme == 'diy' ? value.saleStyle.color : '' }"
							>
								已砍{{ item.sale_num }}件
							</view>
						</view>
						<view
							:class="['content', { 'multi-content': value.nameLineMode == 'multiple' }]"
							v-if="value.goodsNameStyle.control || value.priceStyle.mainControl || value.priceStyle.lineControl"
						>
							<view
								v-if="value.goodsNameStyle.control"
								class="goods-name"
								:style="{ color: value.theme == 'diy' ? value.goodsNameStyle.color : '', fontWeight: value.goodsNameStyle.fontWeight ? 'bold' : '' }"
								:class="[{ 'using-hidden': value.nameLineMode == 'single' }, { 'multi-hidden': value.nameLineMode == 'multiple' }]"
							>
								{{ item.goods_name }}
							</view>
							<view class="discount-price" v-if="value.priceStyle.mainControl && value.template == 'horizontal-slide' && value.style != 'style-2'">
								<text class="unit price-style small" :style="{ color: value.theme == 'diy' ? value.priceStyle.mainColor + '!important' : '' }">¥</text>
								<text class="price price-style large" :style="{ color: value.theme == 'diy' ? value.priceStyle.mainColor + '!important' : '' }">
									{{ item.floor_price.split('.')[0] }}
								</text>
								<text class="unit price-style small" :style="{ color: value.theme == 'diy' ? value.priceStyle.mainColor + '!important' : '' }">
									{{ '.' + item.floor_price.split('.')[1] }}
								</text>
							</view>
							<view class="original-price price-font" v-if="value.priceStyle.lineControl" :style="{ color: value.theme == 'diy' ? value.priceStyle.lineColor : '' }">
								¥{{ item.price }}
							</view>
						</view>
					</view>
				</swiper-item>
			</swiper>
		</template>
	</view>
</template>

<script>
export default {
	name: 'diy-bargain',
	props: {
		value: {
			type: Object
		}
	},
	data() {
		return {
			list: [],
			page: 1
		};
	},
	components: {},
	async created() {
		if (this.value.template == 'row1-of1' && this.value.style == 'style-2') await this.getDataing();
		this.getData();
	},
	watch: {
		// 组件刷新监听
		componentRefresh: async function(nval) {
			if (this.value.template == 'row1-of1' && this.value.style == 'style-2') await this.getDataing();
			this.getData();
		}
	},
	computed: {
		warpCss() {
			var obj = '';
			if (this.value.componentBgColor) obj += 'background:' + this.value.componentBgColor + ';';
			if (this.value.componentAngle == 'round') {
				obj += 'border-top-left-radius:' + this.value.topAroundRadius * 2 + 'rpx;';
				obj += 'border-top-right-radius:' + this.value.topAroundRadius * 2 + 'rpx;';
				obj += 'border-bottom-left-radius:' + this.value.bottomAroundRadius * 2 + 'rpx;';
				obj += 'border-bottom-right-radius:' + this.value.bottomAroundRadius * 2 + 'rpx;';
			}
			return obj;
		},
		// 商品项样式
		goodsItemCss() {
			var obj = '';
			obj += 'background-color:' + this.value.elementBgColor + ';';
			if (this.value.elementAngle == 'round') {
				obj += 'border-top-left-radius:' + this.value.topElementAroundRadius * 2 + 'rpx;';
				obj += 'border-top-right-radius:' + this.value.topElementAroundRadius * 2 + 'rpx;';
				obj += 'border-bottom-left-radius:' + this.value.bottomElementAroundRadius * 2 + 'rpx;';
				obj += 'border-bottom-right-radius:' + this.value.bottomElementAroundRadius * 2 + 'rpx;';
			}
			if (this.value.ornament.type == 'shadow') {
				obj += 'box-shadow:' + '0 0 10rpx ' + this.value.ornament.color + ';';
			}
			if (this.value.ornament.type == 'stroke') {
				obj += 'border:' + '2rpx solid ' + this.value.ornament.color + ';';
			}
			const screenWidth = uni.getSystemInfoSync().windowWidth;
			if (this.value.template == 'horizontal-slide') {
				var width = '';
				if (this.value.slideMode == 'scroll' && this.value.goodsMarginType == 'diy') width = this.rpxUpPx(this.value.goodsMarginNum * 2);
				else width = [screenWidth - this.rpxUpPx(20) * 2 - this.rpxUpPx(200) * 3 - this.rpxUpPx(this.value.margin.both * 2) * 2] / 6;

				obj += 'margin-left:' + width + 'px;';
				obj += 'margin-right:' + width + 'px;';
			}
			return obj;
		},
		swiperHeight() {
			if (this.value.nameLineMode == 'multiple') {
				if (this.value.ornament.type == 'shadow') return '420rpx';
				else return '400rpx';
			}
			if (this.value.ornament.type == 'shadow') return '386rpx';
			else return '378rpx';
		}
	},
	methods: {
		rpxUpPx(res) {
			const screenWidth = uni.getSystemInfoSync().windowWidth;
			var data = (screenWidth * parseInt(res)) / 750;
			return Math.floor(data);
		},
		// 查找自己参与的砍价
		async getDataing() {
			var res = await this.$api.sendRequest({
				url: '/bargain/api/goods/bargainingList',
				data: {},
				async: false
			});

			res.data &&
				res.data.forEach((item, index) => {
					item.is_bargaining = 1;
				});
			this.list = res.data || [];
		},
		// 查找可砍价的商品
		getData() {
			var data = {
				num: this.value.count,
				is_exclude_bargaining: 1
			};
			if (this.value.sources == 'diy') {
				data.num = 0;
				data.id_arr = this.value.goodsId.toString();
			}

			this.$api.sendRequest({
				url: '/bargain/api/goods/lists',
				data: data,
				success: res => {
					if (res.code == 0) {
						if (this.value.template == 'row1-of1' && this.value.style == 'style-2') this.list = this.list.concat(res.data).splice(0, this.value.count);
						else this.list = res.data;

						// 切屏滚动，每页显示固定数量
						if (this.value.template == 'horizontal-slide' && this.value.slideMode == 'slide') {
							let size = 3;
							let temp = [];
							this.page = Math.ceil(this.list.length / size);
							for (var i = 0; i < this.page; i++) {
								temp[i] = [];
								for (var j = i * size; j < this.list.length; j++) {
									if (temp[i].length == size) break;
									temp[i].push(this.list[j]);
								}
							}
							this.list = temp;
						}
					}
				}
			});
		},
		progress(data) {
			// 214 表示当前进度条的宽度
			let progress = (((parseFloat(data.price) - parseFloat(data.curr_price)) / parseFloat(data.price)) * 214).toFixed();
			if (progress == 'NaN') {
				progress = 0;
			}
			return progress;
		},
		toDetail(e) {
			this.$util.redirectTo('/pages_promotion/bargain/detail', {
				b_id: e.bargain_id
			});
		},
		imageError(index) {
			this.list[index].goods_image = this.$util.getDefaultImage().goods;
			this.$forceUpdate();
		}
	}
};
</script>

<style lang="scss">
/deep/.uni-scroll-view ::-webkit-scrollbar {
	/* 隐藏滚动条，但依旧具备可以滚动的功能 */
	display: none;
	width: 0;
	height: 0;
	color: transparent;
	background: transparent;
}

/deep/::-webkit-scrollbar {
	display: none;
	width: 0;
	height: 0;
	color: transparent;
	background: transparent;
}

scroll-view ::-webkit-scrollbar {
	width: 0;
	height: 0;
	background-color: transparent;
	touch-action: none;
}

.diy-bargain {
	overflow: hidden;

	// 头部
	.bargain-head {
		&.style-1 {
			display: flex;
			justify-content: space-between;
			align-items: center;
			height: 88rpx;
			box-sizing: border-box;
			padding: 0 20rpx;
			background-repeat: no-repeat;
			background-size: cover;
			margin-bottom: 20rpx;
			border-radius: 18rpx 18rpx 0 0;

			.left-img {
				height: 40rpx;
				width: 156rpx;
			}

			.head-content {
				position: relative;
				color: #fff;
				font-size: $font-size-tag;
				margin-right: auto;
				margin-left: 20rpx;
				line-height: 1;

				&::after {
					content: '';
					position: absolute;
					width: 2rpx;
					height: 24rpx;
					background-color: #fff;
					top: 50%;
					transform: translateY(-50%);
					left: -12rpx;
				}
			}

			.head-right {
				display: flex;
				align-items: center;
				font-size: $font-size-sub;
				color: #fff;
			}
		}

		&.style-2 {
			display: flex;
			justify-content: space-between;
			align-items: center;
			height: 88rpx;
			box-sizing: border-box;
			padding: 0 20rpx;
			background-repeat: no-repeat;
			background-size: cover;
			margin-bottom: 20rpx;
			border-radius: 18rpx 18rpx 0 0;

			.left-img {
				height: 40rpx;
				width: 156rpx;
			}

			.head-right {
				display: flex;
				align-items: center;
				justify-content: center;
				height: 36rpx;
				background: linear-gradient(270deg, #ffbd5b 0%, #fd882e 100%);
				border-radius: 24rpx;
				padding: 2rpx;

				text:nth-child(1) {
					position: relative;
					left: 6rpx;
					transform: scale(0.9);
				}

				text:nth-child(2) {
					padding: 6rpx 4rpx 4rpx;
					background-color: #fff;
					color: #ffbd5b;
					border-radius: 50%;
					transform: scale(0.6);
					font-weight: bold;
					line-height: 1;
				}
			}
		}
	}

	// 商品列表
	&.row1-of1 {
		.item {
			display: flex;
			margin-bottom: 20rpx;
			padding: 16rpx;

			&.shadow {
				margin: 8rpx 8rpx 20rpx 8rpx;
			}

			&:last-child {
				margin-bottom: 0;
				padding-bottom: 20rpx;
			}

			.img-wrap {
				width: 200rpx;
				height: 200rpx;

				> image {
					width: 200rpx;
				}
			}

			.content {
				flex: 1;
				display: flex;
				flex-direction: column;
				justify-content: space-between;
				padding: 6rpx 0 6rpx 20rpx;

				.goods-name {
					&.multi-hidden {
						line-height: 1.3;
					}
				}

				.price-wrap {
					display: flex;
					justify-content: space-between;
					align-items: center;
				}

				.discount-price {
					white-space: nowrap;
					font-weight: bold;
					line-height: 1;

					.unit {
						font-size: $font-size-tag;
						margin-right: 4rpx;
						color: var(--price-color);
					}

					.price {
						font-size: $font-size-toolbar;
						color: var(--price-color);
					}
				}

				button {
					margin: 0;
					padding: 0 20rpx;
					color: var(--btn-text-color);
					background-color: $base-color;
					color: #fff;
					min-width: 112rpx;
					height: 52rpx;
					line-height: 52rpx;
					font-size: $font-size-tag;
					font-weight: bold;
				}
			}
		}

		&.style-2 {
			.discount-price {
				position: relative;
			}

			.progress {
				display: flex;
				flex-direction: column;
				margin-top: 10rpx;
				margin-right: 16rpx;

				.bg {
					margin-left: 6rpx;
					width: auto;
					height: 20rpx;
					border-radius: 20rpx;
					background-color: #ffeadb;
					position: relative;

					&::after {
						content: '';
						width: 26rpx;
						height: 26rpx;
						border-radius: 50%;
						background-color: #fa1a1a;
						position: absolute;
						top: 50%;
						transform: translateY(-50%);
						right: -18rpx;
					}

					.curr {
						width: 0;
						height: 20rpx;
						border-radius: 20rpx;
						background-color: #fa1a1a;
						position: relative;

						.progress-bar {
							position: absolute;
							right: -20rpx;
							width: 30rpx;
							height: 30rpx;
							max-width: inherit !important;
							max-height: inherit !important;
							top: 50%;
							transform: translateY(-50%);
							z-index: 1;
						}
					}
				}

				.num {
					font-size: $font-size-tag;
					margin-top: 12rpx;
					line-height: 1;

					text {
						color: #fa1a1a;
					}
				}
			}
		}

		&.style-3 {
			.progress {
				display: flex;
				color: $color-tip;
				font-size: $font-size-sub;
				.num {
					color: var(--price-color);
				}
			}
			.item {
				.content {
					justify-content: space-around;
				}
				.img-wrap {
					overflow: hidden;
				}
			}
		}
	}

	&.horizontal-slide {
		.scroll {
			width: calc(100% - 40rpx);
			padding: 20rpx;
			line-height: 1;
			white-space: nowrap;

			.item.shadow {
				margin-bottom: 8rpx;
			}
		}

		.flex-between {
			justify-content: space-between;
		}

		.item {
			display: inline-block;
			width: 200rpx;
			overflow: hidden;
			box-sizing: border-box;

			&:nth-child(3n + 3) {
				width: 198rpx;
			}

			&.shadow {
				margin-top: 8rpx;
			}

			.img-wrap {
				width: 200rpx;
				height: 200rpx;
				position: relative;
				overflow: hidden;
				margin: 0 auto;

				> image {
					width: 100%;
				}

				.bg {
					position: absolute;
					width: 100%;
					height: 60rpx;
					bottom: 0;
					left: 0;
					z-index: 2;
				}

				.num {
					width: 180rpx;
					position: absolute;
					bottom: 10rpx;
					padding-left: 20rpx;
					font-size: 20rpx;
					line-height: 1;
					color: #ffffff;
					z-index: 3;
				}
			}

			.content {
				padding: 10rpx;
				display: flex;
				flex-direction: column;
				justify-content: space-between;

				&.multi-content {
					height: 160rpx;
					box-sizing: border-box;
				}

				.goods-name {
					line-height: 1.3;

					&.multi-hidden {
						white-space: break-spaces;
					}
				}

				.discount-price {
					white-space: nowrap;
					margin-top: auto;
					font-weight: bold;
					line-height: 1;

					.unit {
						font-size: $font-size-tag;
						margin-right: 4rpx;
						color: var(--price-color);
					}

					.price {
						font-size: $font-size-toolbar;
						color: var(--price-color);
					}
				}

				.original-price {
					margin-top: 4rpx;
					font-size: $font-size-tag;
					color: $color-tip;
					line-height: 1;
					text-decoration: line-through;
				}
			}
		}

		.swiper {
			padding: 20rpx;
			width: 100%;
			white-space: nowrap;
			box-sizing: border-box;

			.swiper-item {
				display: flex;
				align-items: center;
			}

			.item {
				width: 200rpx;
				box-sizing: border-box;
			}
		}
	}
}
</style>
